Considering TBC hired the one guy doing anything with Swift on Windows and paid for much of the work needed to make Windows an officially supported platform, it was still an achievement. I'm not even sure I'd call Windows officially supported since most of the support comes from TBC and not Apple or official Swift channels.
sounds like they made a stupid decision and had to pay for it w/ technical overhead?
chrome already has ui rendering set up on windows, all they had to was not reinvent the wheel and just make tweaks to the ui and some server side magick on their end, but that would reveal the fact that they're an half a billion dollar 100 person chrome fork for nerds with no way to generate profit lol